1. Double-click ideaiu-12.1.1.exe, click Next, and change the installation directory to D: \ Program Files \ jetbrains \ intellij idea. All other items are set by default. (change the directory here to facilitate system reinstallation without re-installation)
2. Click Finish to complete the installation.
3. Open D: \ Program Files \ jetbrains \ intellij idea \ bin \ idea. properties in a text editor.
4. Change row 9th to idea. config. Path = D:/program files/jetbrains/intellijideacache12/config (if the version is upgraded, change the folder name accordingly. The config folder stores the intellij idea configuration file)
5. Change row 14th to idea. system. Path = D:/program files/jetbrains/intellijideacache12/system (the system folder stores system cache indexes and so on. If intellij idea is faulty due to unexpected shutdown, try to delete this folder. After being deleted, the local history of intellij idea files will be lost)
6. Open intellij idea. (Note that when you use a registration machine to register, enter your own name in the name column and generate the registration code according to generate. Otherwise, a conflict is prompted when there are duplicate registration numbers in the LAN. If you are using a 64-bit JDK, consider using D: \ Program Files \ jetbrains \ intellij idea \ bin \ idea64.exe)
7. Keep clicking Next and click Configure, settings
8. Click keymap on the left, expand Main Menu-code-completion on the right, right-click basic, and click Add keyboard shortcut cut.
9. Press SHIFT + space and click OK.
10. Click OK to complete the settings.
Intellij idea installation tutorial